Whistleblower Protection Act of 1989
Whistleblower protection is the federal law that provides protection to employees against retaliation for reporting illegal acts of employers. An employer may not rightfully retaliate in any way, such as discharging, demoting, suspending or harassing the whistle blower. Employer retaliation of any kind may result in the whistle blower filing a charge with a government agency and/or filing a law suit against the employer.
Source: Society for Human Resource Management